AQ_F_1800377_20221026_CMPL_InspRpt

NORTH CAROLINA DIVISION OF Mooresville Regional Office
AIR QUALITY CertainTeed dba Millwork&Panel LLC
NC Facility ID 1800377
Inspection Report County/FIPS: Catawba/035
Date: 10/25/2022
Facility Data Permit Data
CertainTeed dba Millwork&Panel LLC Permit 06650/R13
2651 Penny Road Issued 10/9/2014
Claremont,NC 28610 Expires 9/30/2022
Lat: 35d 42.4062m Long: 81 d 9.5748m Class/Status Synthetic Minor
SIC: 5033/Roofing, Siding And Insulation Permit Status Active
NAICS: 42333/Roofing, Siding, and Insulation Material Merchant Wholesalers Current Permit Application(s)Renewal
Contact Data Program Applicability
Facility Contact Authorized Contact Technical Contact SIP
Brian Lane Gregory Horton D.Neil Gresham,Jr.
MACT Part 63: Subpart ZZZZ
EHS Manager Plant Manager Southeast Region EHS
[phone] [phone] Manager
[phone]
Compliance Data
Comments:
Inspection Date 10/25/2021
Inspector's Name Sandra Sherer
Inspector's Signature: Sandia Sfivwl Operating Status Operating
Compliance Status Compliance-inspection
Action Code FCE
Date of Signature: 10/26/2022 Inspection Result Compliance
Total Actual emissions in TONS/YEAR:
TSP S02 NOX VOC CO PM10 *HAP
2013 7.07 --- --- 2.54 --- 7.07 318.00
2008 65.05 --- --- 13.79 --- 0.3300 87.99
*Highest HAP Emitted inpounds)
Five Year Violation History:None
Date Letter Type Rule Violated Violation Resolution Date
Performed Stack Tests since last FCE:None
Date Test Results Test Method(s) Source(s)Tested

Certainteed Vinyl Operations
October 25,2022
Page-2—
Type Action: X Full Compliance _Partial Compliance _Complaint Other:
Evaluation Evaluation/Reinspection Investigation
Data Date submitted for initial review 10/26/2022 _IBEAM WARNING/OB,NOD,NOV,NRE
Tracking: X IBEAM Document
X IBEAM Inspection,list date inspected X IBEAM LAT/LONG,Facility Locked
X IBEAM Inspection,list date draft is submitted X IBEAM LAT/LONG,Coordinates checked
X IBEAM Inspection,pollutants/programs checked _IBEAM Complaint
X IBEAM Planning,Next Inspection Date 10/1/2023
Directions: From MRO,travel I-77 north to I-40 west. Take exit 135 (Claremont),turn left onto North
Oxford Street and then right onto Main Street(Hwy. 70). Travel approximately one mile and turn left
onto Penny Road (at Claremont Industrial Park). The facility is located on the right at 2651 Penny Road.
Safety Equipment: Safety glasses,hearing protection,hardhat,safety shoes,and a safety vest are required.
Safety Issues: None noted.
Lat/Long Coordinates: A review of the "Facilities Regulated by Air Quality" on the DAQ website
indicates the facility's location is accurate and matches the facility's latitude and longitude coordinates
listed in IBEAM. No changes to the latitude and longitude coordinates are needed in IBEAM. The
coordinates are not locked in IBeam.
Email Contacts: IBEAM email contacts were verified with no changes required.
1. The purpose of this site visit was to conduct a routine compliance inspection. This facility
manufactures vinyl siding. The facility operates 24 hours a day, seven days a week. The facility
employs approximately 180 full time employees. Mr.Brian Lane,EHS Manager,accompanied me
during the inspection.
2. Facility Contact Information:
During the inspection, I verified the facility contact information in IBEAM. No changes were
needed.
3. Compliance Historx
No history in the last five years.
4. Observations of permitted air emission sources and control devices:
Emission Emission Source Control Control System
Source ID I Description System ID Description
ES-1001 PVC resin vacuum filter receiver(183
railcar unloading system]FR-1001
�_ _` square feet of filter area).

Certainteed Vinyl Operations
October 25, 2022
Page- 3 -
Emission Emission Source Control Control System
Source ID Description System ID description
r(25,000 pounds per hour
aximum capacity)
Observed. PVC powder is unloaded from railcars. The PVC resin vacuum system was operating at the
time of inspection with no visible emissions.
ES-1011 PVC storage silo (12,500 BV-1011 bin vent filter(184
pounds per hour square feet of filter area)
maximum capacity)
Observed. Once the PVC powder is unloaded from the railcars to the silo, it is transferred from the
silos to the process. The silo vents to a bagfilter on top of the silo. The silo was being filled at the time
of inspection with no visible emissions.
ES-1012 PVC storage silo (12,500 BV-1012 bin vent filter(184
pounds per hour square feet of filter area)
maximum capacity)
Observed. Once the PVC powder is unloaded from the railcars to the silo, it is transferred from the
silos to the process. The silo vents to a bagfilter on top of the silo. The silo was being filled at the time
of inspection with no visible emissions.
ES-1015a calcium carbonate silo BV-1015a bin vent filter(183
(20 tons per hour fill square feet of filter area)
rate)
Observed. The calcium carbonate silo is located near the railcar unloading area. The silo vents to a
bagfilter on top of the silo. Calcium carbonate is unloaded from a truck to the silo. No calcium
carbonate was being loaded to the silo at the time of the inspection.
ES-1015b calcium carbonate BV-1015b bin vent filter(226
pneumatic conveyor(2 square feet of filter area)
tons per hour maximum
unloading rate)
Observed. The calcium carbonate was being conveyed to the process at the time of inspection. I saw
no visible emissions from the conveyor.
ES 2001 vacuum resin conveying FR-2001 bagfilter(183 square feet
system (19,500 pounds of filter area)
per hour maximum
capacity)
Observed. The vacuum resin conveying system is used to transfer PVC resin from the storage silos to
the blending operations(heat and cool mixers). The resin conveyor was operating at the time of
inspection with no visible emissions.

Certainteed Vinyl Operations
October 25, 2022
Page-4-
Emission Emission Source Control Control System
Source ID Description System ID Description
ES-3001 vacuum compound FR-3011, FR-3012, twenty(20) bagfilters
conveying system FR-3021, FR-3022, (ID Nos. FR-3011, FR-
(51,000 pounds per hour FR-3031, FR-3032, 3012, FR-3021,FR-
capacity) consisting of FR-3041,FR-3042, 3022, FR-3031,FR-
twenty(20)vacuum FR-3051,FR-3052, 3032,FR-3041,FR-
conveying lines FR-3062,FR-3072, 3042, FR-3051,FR-
FR-3082,FR-3092, 3052, FR-3062, FR-
FR-3102,FR-3061, 3072,FR-3082,FR-
FR-3071,FR-3081, 3092, and FR-3102, FR-
FR-3091,FR-3101 3 06 1, FR-3071,FR-
3081,FR-3091, and FR-
i 3101; 183.4 square feet
of filter area, each)
installed in parallel.
Observed. Ten of the vacuum conveying lines, consisting of five stations with two lines per station was
operating during the inspection. Each line has one bagfilter unit used to transport PVC compound from
the storage silos to the vacuum receivers. The exhaust from the system is sent to a blower which then
exhausts through a roof vent. I saw no visible emissions from this operation.
ES-6001 cool mixer(24,000 FR-6001 bagfilter(183.4 square
pounds per hour feet of filter area).
maximum capacity)
Observed. This mixer is no longer being used by the facility and has been removed from the facility
property. This cool mixer was previously added to the yellowsheet for removal from permit during the
next permit renewal.
ES-6002 cool mixer(24,000 FR-6002 bagfilter(183.4 square
pounds per hour feet of filter area).
maximum capacity)
Observed. This cool mixer has been replaced by a new unit rated at 13,550 lbs/hr which vents to
control device FR-6002. Blended compounds from the blending heat mixer are further processed in the
cool mixers before being sent to the compound silos that are located inside the building. The process
vents to a bagfilter located on top of the building. The cool mixer was operating at the time of
inspection with no visible emissions.
I _ _
ES-6003 blending heat mixer FR-6003 bagfilter(183.4 square
(24,000 pounds per hour feet of filter area).
maximum process rate)
Observed. Blended compounds from the blending heat mixer are further processed in the cool mixers
before being sent to the compound silos that are located inside the building. The process vents to a
bagfilter located on top of the building. The blending heat mixer was operating at the time of inspection
with no visible emissions.

Certainteed Vinyl Operations
October 25, 2022
Page- 5 —
Emission Emission Source Control Control System
Source ID Description System ID Description
ES-7001 glue application N/A FN/A
operations
Observed. Water-based glue is stored in plastic totes. There is one(1) hand- spraying line and three
(3) automatic spraying lines. The glue application line was operating at the time of inspection with no
odorous emissions.
ES-8001 barcode labeling system —
including fifteen (15) ink
'et print heads installed N/A
on ten (10) extrusion
lines
Observed. The barcode system operates intermittently and is used to print product numbers and
information regarding production on the finished product. Currently only ten ink jet print heads are
installed on six(6) extrusion lines. The barcode system was operating at the time of inspection with no
odorous emissions.
ES-8002 PVC grinding operation FR-8002 bagfilter(1,530 square
(3,000 pounds per hour feet of filter area).
maximum process rate)
Observed. Collected waste from the grinding of rejected siding is ground up and recycled. The process
vents to a bagfilter located on top of the building. The PVC grinding operation was not operating at the
time of inspection.
5. Observations of insignificant air emission sources and control devices listed on the current permit:
Source Source of Source of Title V
TAPs? Pollutants?
IIES-5001 - extruder process consisting of ten(10) yes Yes
;extrusion lines (two extruders per line)
;Observed. The extruders are used to make the final product where the PVC compound is sent
through a chill roller, pre-former roll, water bath and a cutter/stacker. After exiting the extruder
process, the vinyl siding is placed into cardboard boxes and sent to the storage area. This process
!was operating during the inspection with no problems noted.
I-PUMP - diesel-fired fire pump (220 hp) subject to yes Yes
MACT Subpart ZZZZ
Observed. The fire pump was not in operation at the time of inspection. The hour meter read
1365.5 hours at the time of the inspection. The facility ran the diesel-fired fire pump 26 hours since
jthe previous inspection conducted on October 21,2021.
jI-TOWER- cooling tower �� No Yes
IObserved. The cooling tower was operating during the inspection with no problems noted.

Certainteed Vinyl Operations
October 25,2022
Page- 6—
6. Observations of air emission sources and control devices not listed on the current permit:
a. None.
7. Compliance with specific permit conditions and limitations:
a. Condition A.2. requires the facility to submit the permit renewal application including an
emission inventory at least 90 days prior to the expiration date of the Air Permit.
Observed. A new air permit was issued on October 9, 2014 due to expire on September
30,2022. MRO sent a receipt of permit application letter to the facility on July 7,2022 but
has not issued the new permit at this time. I used permit No. 06650R13 to conduct this
inspection.
b. Condition A.3. 15A NCAC 21) .0515 "Particulates from Miscellaneous Industrial
Processes"particulate matter emissions shall not exceed allowable emission rates.
Observed. There are no monitoring, recordkeeping or reporting requirements with this
stipulation. The allowable emission rates from this facility are not being exceeded.
Compliance with this stipulation was determined during the permit application process.
C. Condition A.4. 15A NCAC 2D .0521, "Control of Visible Emissions". The facility is
limited to 20 percent opacity.
Observed. No visible emissions were observed at the facility. Compliance with this
stipulation is indicated.
d. Condition A.5. 15A NCAC 2D .0535. Permittee of a source of excess emissions that last
for more than four hours and that results from a malfunction, a breakdown of process or
control equipment or any other abnormal conditions, shall notify the Director or his
designee of any such occurrence by 9:00 a.m. Eastern time of the Division's next business
day of becoming aware of the occurrence.
Observed. Based on a review of DAQ files and conversation with Mr. Lane, no excess
emissions have occurred at the facility in several years. Compliance with this stipulation
is indicated.
e. Condition A.6. 15A NCAC 21) .0540 "Particulates from Fugitive Dust Control Sources."
The Permittee shall not cause or allow fugitive dust emissions to cause or contribute to
substantive complaints or excess visible emissions beyond the property boundary.
Observed. There have been no dust complaints received by the MRO concerning the
facility and no fugitive dust emissions were observed at the time of this inspection.
Compliance with this condition is indicated.
f. Condition A.7. 15A NCAC 2D .0958(c) "Work Practices for Sources of Volatile Organic
Compounds". Store all VOC-containing material in closed containers when not in use,and

Certainteed Vinyl Operations
October 25, 2022
Page- 7—
clean spills and equipment properly. This condition also requires the facility to comply
with work practices for solvents.
Observed. VOCs are only emitted in the bar code labeling system and the glue
applications. The glue is contained in enclosed plastic totes and printing ink and MEK are
stored in a locked cabinet. There are no solvents used at the facility: This condition should
be removed from next permit revision since the facility is not located in a non-attainment
county. Compliance with this condition is indicated.
g. Condition A.8 Federal and State Rules'Applicable to Sources Exempted from Air
Permitting Requirements-The Permittee shall comply with all applicable provisions
including operating restrictions,work practices, monitoring, recordkeeping, and reporting
requirements as promulgated in 40 CFR 63, Subpart ZZZZ. Each subject engine shall be
operated and maintained in a manner consistent with safety and good air pollution control
practices for minimizing emissions.Each subject engine may be operated for 50 hours per
calendar year for non-emergency situations. The 50 hours of operation in non-emergency
use are counted as part of the 100 hour per calendar year for maintenance and testing.
The following requirements apply:
- change oil and filters every 500 hours of operation or annually, whichever comes
first, or utilize an oil analysis program;
- inspect air cleaners every 1,000 hours of operation or annually, whichever comes
first;
- inspect all hoses and belts every 500 hours of operation or annually, whichever
comes first, and replace as necessary;
- and minimize time spent at idle and minimize start-ups to a period needed for
appropriate and safe loading not to exceed 30 minutes;
- use of diesel fuel with a sulfur content of 15 ppm maximum; and
- install non-resettable hour meter.
Observed. The facility has a diesel fire pump for emergency purposes which runs on low-
sulfur diesel fuel. The non-resettable hour meter read 365.5 during the time of the
inspection. Since the last inspection conducted on October 21,2021,the engine has run 26
hours. I reviewed records of the last two tune-ups that were conducted on May 4, 2021
and February 23, 2022. Compliance was indicated.
h. Condition A.9. LIMITATION TO AVOID 15A NCAC 2Q .501 Pursuant to 15A NCAC
2Q .0315 "Synthetic Minor Facilities,"to avoid the applicability of 15A NCAC 2Q .0501
"Purpose of Section and Requirement for a Permit," as requested by the Permittee,
facility-wide emissions shall be less than the following:
�ollutant Emission Limit----�
(Tons per consecutive 12-month period)

Certainteed Vinyl Operations
October 25,2022
Page- 8—
PM10 100
a. Inspection and Maintenance Requirements -
i. Bagfilter Requirements-Particulate matter emissions shall be controlled as
described in the permitted equipment list. To comply with the provisions of this
permit and ensure that emissions do not exceed the regulated limits,the Permittee
shall perform periodic inspections and maintenance(I&M) as recommended by
the manufacturer. In addition,the Permittee shall perform an annual(for each 12
month period following the initial inspection) internal inspection of each bagfilter
system.
b. Recordkeeping Requirements
i. A logbook(in written or electronic format) shall be kept on site for each control
device and made available to Division of Air Quality personnel upon request.
The Permittee shall record all inspection, maintenance and monitoring
requirements listed above in the logbook. Any variance from the manufacturer's
recommendations shall be investigated with corrections made and date of actions
recorded in the logbook.
Observed. The facility is currently conducting a minimum of annual internal baghouse
inspections. I reviewed baghouse inspection records during the inspection that showed the
annual inspection dates are as follows:
Emission Emission Source Control Control System Last completed inspections
Source ID Description System ID .Description F �
ES-1001 PVC resin FR-1001 filter receiver 5/15/21 j 11/7/21
vacuum railcar (183 square feet
unloading system of filter area)
(25,000 pounds
per hour
maximum
capacity)
,ES-1011 PVC storage silo BV-1011 bin vent filter 10/18/21 9/13/22
(12,500 pounds (184 square feet
per hour of filter area)
maximum
capacity)
ES-1012 ^PVC storage silo BV-1012 bin vent filter �110/18�19/13/22
(12,500 pounds (184 square feet j
per hour of filter area)
maximum
capacity)
ES-1015a calcium carbonate BV-1015a bin vent filter 110//118/21
silo(20 tons per (183 square feet
hour fill rate) of filter area)

Certainteed Vinyl Operations
October 25,2022
Page- 9-
Emission Emission Source Control Control System Last completed inspections
Source ID Description System ID Description j
EES-1015b calcium carbonate V-1015b bin vent filter 5/8/21 3/13/22,9/18/22
pneumatic (226 square feet j
conveyor(2 tons of filter area)
per hour I
maximum
unloading rate)
IES- OZ O1 vacuum resin IFR-2001 bagfilter(183 15/8/21 13/10/22
conveying system square feet of
(19,500 pounds filter area)
per hour
maximum
capacity) j
IES-3001 vacuum FR-3011,FR- twenty(20) See below
compound 3012,FR-3021, 'bagfilters(ID
conveying system FR-3022,FR- Nos. FR-3011,
j (51,000 pounds 3031,FR-3032, FR-3012,FR-
per hour capacity) IFR-3041,FR- 3021,FR-3022,
consisting of 13042,FR-3051, FR-3031,FR-
seventeen(17) !FR-3052,FR- 3032,FR-3041,
vacuum 13062,FR-3072, FR-3042,FR-
conveying lines FR-3082, FR- 3051,FR-3052,
3092,FR-3102, FR-3061,FR-
!FR-3061,FR- 3062,FR-3071,
3071,FR-3081, FR-3072,FR- I
FR-3091,FR- • 3081,FR-3082,
3101 FR-3092, and FR- j
3102,FR-3081,
FR-3091,and FR- 1
3101; 183.4
square feet of
filter area, each)
installed in
j parallel
,There are two bagfilters per line.
'Line 1,2 and 4 are not in use.The last bagfilter inspections conducted are as follows:
;Line 3 Units 3031 and 3032 5/18/21 and 5/3/22
;Line 4 Units 3041 and 3042 5/16/21 and 5/3/22(the facility keeps this line ready as a standby unit)
:Line 5 Units 3051 and 3052 4/2/21, 3/1/22 and 9/21/22
;Line 6 Units 3061 and 3062 4/1/21, 3/20/22 and 9/18/22
'Line 7 Units 3071 and 3072 4/2/21,4/12/22 and 10/6/22
,'Line 8 Units 3081 and 3082 4/8/21, 10/31/21 and 4/16/22
�Line 9 Units 3091 and 3092 9/4/21,3/9/22 and 9/16/22
Line 10 Units 3101 and 3102 1/5/21, 11/2/21 and 5/2/22
ES-6001 cool mixer 'FR-6001 bagfilter(183.4 N/A IN/A
(Has been (24,000 pounds i square feet of
jremoved from per hour filter area) '
!facility) maximum
j capacity)

Certainteed Vinyl Operations
October 25, 2022
Page- 10—
Emission Emission Source, Control Control System Last completed inspections
Source ID Description System ID Description
;.ES-6002 cool mixer FR-6002 bagfilter(183.4 5/11/21 ; 3/10/22
(24,000 pounds square feet of
per hour filter area)
maximum
capacity)
ES-6003 blending heat 'FR-6003 bagfilter(183.4 8/27/�21 3/27/22, 10/6/22
mixer(24,000 square feet of
pounds per hour filter area)
maximum process
rate)
'ES-8002 PVC grinding 1FR-8002 bagfilter(1,530 5/20/21 12/5/21, 5/3/22
operation(3,000 I square feet of i
pounds per hour j : filter area)
maximum process
rate) j
i. Condition A10. 15A NCAC 2Q .0711 "Emission Rates Requiring a Permit." The
facility's use of MEK is limited to 78 pounds-per day or 22.4 pounds per hour.
Observed. The facility is keeping MEK purchase data. From Jan 1 through December 31,
2021 the facility purchased 216 liters of MEK (276.6 lbs.), and operated the printers
approximately 200 days, 24 hours per day, which calculates into the facility using
approximately 1.3 83lbs. of MEK per day or 0.0576 lbs. of MEK per hour. Compliance is
indicated for this stipulation.
8. NSPS/NESHAP Review
The facility has a diesel fire pump that is subject to NESHAP 4Z. The facility has no boilers or
gasoline storage tanks that would be subject to NESHAP 6J or NESHAP 6C, respectively.
9. Summary of changes needed to the current permit:
Remove emission source (ES-6003) "cool mixer" from permit. The facility only uses one cool
mixer(ES-6001) and the other one has been removed from the site.
Remove condition 2D .0958.
These changes have been previously added to the facility's yellowsheet.
10. Compliance assistance offered duringthe he inspection:
None.
11. Section 112(r)applicability:
This facility does not appear to be subject to the requirements of the Chemical Accident Release
Prevention Program, Section 112(r) of the Clean Air Act.

Certainteed Vinyl Operations
October 25, 2022
Page- 11 —
12. Compliance detennination:
Based on my observations,this facility appeared to be in compliance with the applicable air quality
regulations at the time of the inspection.
SLS:
c: Laserfiche
https://ncconnect.sharepoint.com/sites/DAQ-MRO/Counties/CATAWBA/00377/INSPECT 20221025.docx